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Security Bulletin: This Power System update is being released to address CVE 2022-22488

Security Bulletin


POWER9: In response to a security issue with the BMC web server, a new Power System firmware update is being released to address Common Vulnerabilities and Exposures issue number CVE 2022-22488.

Vulnerability Details

CVEID:   CVE-2022-22488
DESCRIPTION:   IBM BMC could allow a privileged user to cause a denial of service by uploading or deleting too many CA certificates in a short period of time.
CVSS Base score: 4.9
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s)Version(s)Release(s)

OP910.00 through OP910.60


OP940.00 through OP940.40


Customers with the products below running OP910, install OP910.70:
1) IBM Power System AC922 (8335-GTG)

Customers with the products below running OP940, install OP940.50:
1) IBM Power System AC922 (8335-GTH, 8335-GTX)

Workarounds and Mitigations

To avoid this problem, wait 10 seconds between uploading CA certificates.

To recover from this problem, restart the BMC's HTTPS service.  This can be performed in one of two ways:
1. Remove power from the BMC and then reapply power, OR
2. Use root access to the BMC's command shell, and use the "reboot" command to reset the BMC.

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Change History

17 Nov 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location


[{"Business Unit":{"code":"BU009","label":"Systems - Server"},"Product":{"code":"AC922_309","label":"Power 9 AC922-\u0026gt;8335"},"Component":"BMC","Platform":[{"code":"PF050","label":"BMC"}],"Version":"OP910, OP940","Edition":""}]

Document Information

Modified date:
17 November 2022